Would it be better to run single shots with CNG? - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 04-20-2011, 12:24 AM Thread Starter
PSN Local
 
Snowman269's Avatar
 
Join Date: Jul 2007
Location: DL, MN
Posts: 141
Would it be better to run single shots with CNG?

I'm working on installing a CNG compressor in my garage and start running my gasoline vehicles on Natural Gas. Current prices for NG are .80 per therm, which is about half what I spend to buy propane to heat my house. So, once I have everything converted, I expect to run my daily driver car for less than $2 GGE. Gasoline engines can run on straight CNG. Makes complete sense to drop gasoline to me. Not to mention, we have enough NG in the ground to supply all the homes and vehicles in the US for over a 100 years. Bye bye OPEC!

Now, my questions start with diesel CNG kits. Diesel engines will run on straight CNG, but they need diesel fuel to help with ignition and diesel fuel helps keep things lubricated. Obviously not as well as the old good fuel.

I know Drugs Kill, this is why I never did propane. But how would I safely setup CNG to run in my PowerStroke? Obviously going to need some special tunes, and I may not be able to tow heavy with CNG. Who knows how to tune gas safely?

Also, 3 - 12 GGE tanks would fit under my CCLB easy, 4 if I removed the stock long tank and installed an Excursion tank where the tires mounts. 3 tanks would hold close to what the stock tank does. If I needed more, a 25GGE would fit in the front of the bed, I just don't want to give up bed space.

Ok, back to my original question, does split shots in the 7.3 mess up any mileage gains by the pre-ignition diesel fuel charge burning the CNG early? It seems single shots would be a requirement for safer operation?

02 7.3 X 4x4, MBRP 4",X & C Codes, RR Bags, Hellwig, 203 stat, tnk Mods
01 7.3 F350 CCLB 4x4 MBRP 4", BTS Trans, US Gear UD, DP 6 pos chip, V10 TCooler, 203 stat, DI reg Return, GT38R BB, AFE 2, Banks IC, Air Rite Bags,
96 F250 CCSB 4x4, 03 axles springs, rsk, ffd stage 2's, adrenaline, swamp tunes, bts trans, bdp fuel, diy IC
Snowman269 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 04-25-2011, 05:33 PM
Junior Mint
 
Join Date: Aug 2007
Location: Austin, TX
Posts: 2,461
Re: Would it be better to run single shots with CNG?

Yes.

You need to run single shots w/ conservative timing and generally on the low hp side. Slowish nozzles wouldn't hurt either.

I think your ideas are awesome and I hope you succeed.

I'm officially...Stroke-less.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Suns_PSD is offline  
post #3 of 7 (permalink) Old 05-10-2011, 09:00 PM Thread Starter
PSN Local
 
Snowman269's Avatar
 
Join Date: Jul 2007
Location: DL, MN
Posts: 141
Re: Would it be better to run single shots with CNG?

Ok,

How conservative on the timing. I'll either need to buy a tuning program to allow tuning myself, or who should I be talking to &/or working with?

02 7.3 X 4x4, MBRP 4",X & C Codes, RR Bags, Hellwig, 203 stat, tnk Mods
01 7.3 F350 CCLB 4x4 MBRP 4", BTS Trans, US Gear UD, DP 6 pos chip, V10 TCooler, 203 stat, DI reg Return, GT38R BB, AFE 2, Banks IC, Air Rite Bags,
96 F250 CCSB 4x4, 03 axles springs, rsk, ffd stage 2's, adrenaline, swamp tunes, bts trans, bdp fuel, diy IC
Snowman269 is offline  
 
post #4 of 7 (permalink) Old 05-25-2011, 11:09 PM
PSN Veteran
 
AllanB's Avatar
 
Join Date: Mar 2009
Location: Mississippi
Posts: 728
Re: Would it be better to run single shots with CNG?

I read a few years back in Diesel Power Mag where a guy had outfitted his truck with CNG injection. If I remember right he was injecting the whole time it was running, which made the diesel burn more efficient. I know, same theory behind a propane kit. He was getting some crazy mpg, if I remember something like 50mpg in a 1 ton. You might be able to get on their site and find the article. But like I said it has been 3 or 4 years ago. I have always been interested in this. My basement has CNG going to it. I run the heat in my house on it. I have always wondered if there was a way to tap into this line and install a pump or what ever is needed to fill a tank from my basement. Maybe not the safest thing to do though. It might be expensive to set up, but in the long run it would pay for itself. Fuel prices are surely not going to get lower. Post it up if you come up with something. Would be interesting. Oh plus the guy in the article had a good bit more hp.

The world is a dangerous place to live, not because of the people who are evil, but becase of the people who do nothing about it.
--Albert Einstein
AllanB is offline  
post #5 of 7 (permalink) Old 09-14-2011, 04:09 PM
PSN Newb
 
2xs Performance's Avatar
 
Join Date: Sep 2011
Location: greenbrier AR
Posts: 9
Re: Would it be better to run single shots with CNG?

CNG isn't as efficient as propane though. It doesn't have as much energy per gallon. I do have a few customers that fill their own propane tanks from their big tanks at home. Our system uses a standard BBQ grill tank, It lasts over a month, and at less then $20 to swap out tanks, it far out weighs the cost. Most of my customers are getting a 5-6 mpg gain. Propane 100%.
Wix.com first page created by WIL2XS based on Business View New
2xs Performance is offline  
post #6 of 7 (permalink) Old 09-15-2011, 02:25 AM
PSN Local
 
winkfab's Avatar
 
Join Date: Sep 2008
Location: S.E. Michigan
Posts: 445
Re: Would it be better to run single shots with CNG?

if it comes on a 4psi of boost how does it get better milage if I'm not into the boost cruising


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Wink Fab - cnc machining and fabrication
2008 f250 4x4 bone stock and ready to mod/repair
97 f350 4x4 410 gears 37 BFG, 4" exhaust, dyi, tw chip,
IDM mod, .427 sonnex valve, rsk w/sd springs, grease able 4x4 lever,Rosewood stage 2, T-500 hpop,1.0 ex housing
These trucks are like crack, you just can't leave it alone.
winkfab is offline  
post #7 of 7 (permalink) Old 09-21-2011, 02:54 AM
PSN Veteran
 
AllanB's Avatar
 
Join Date: Mar 2009
Location: Mississippi
Posts: 728
Re: Would it be better to run single shots with CNG?

Quote:
Originally Posted by winkfab View Post
if it comes on a 4psi of boost how does it get better milage if I'm not into the boost cruising
I am not sure I understand the question. The way this guy was getting better mpg is the same idea as Propane. If it is injected in the diesel, then the diesel will burn more efficient, make your mpg better. I don't know a terrible lot about it, but I understand that much of it. At least I think I do lol

The world is a dangerous place to live, not because of the people who are evil, but becase of the people who do nothing about it.
--Albert Einstein
AllanB is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the PowerStrokeNation : Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome